Diff of /Doc/library/subprocess.rst [cc0557] .. [1b62bf] Maximize Restore

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--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -157,6 +157,12 @@
 
       retcode = call(["ls", "-l"])
 
+   .. warning::
+
+      Like :meth:`Popen.wait`, this will deadlock if the child process
+      generates enough output to a stdout or stderr pipe such that it blocks
+      waiting for the OS pipe buffer to accept more data.
+
 
 .. function:: check_call(*popenargs, **kwargs)
 
@@ -170,6 +176,10 @@
       check_call(["ls", "-l"])
 
    .. versionadded:: 2.5
+
+   .. warning::
+
+      See the warning for :func:`call`.
 
 
 .. function:: check_output(*popenargs, **kwargs)